Contract 0x6b175474e89094c44da98b954eedeac495271d0f is not detected as ERC20

[medvedev1088]

https://etherscan.io/address/0x6b175474e89094c44da98b954eedeac495271d0f

[jensenity]

ethereum-etl/ethereumetl/service/eth_contract_service.py

Line 54 in e8b6fe7

c.implements('allowance(address,address)')

https://etherscan.io/address/0x6b175474e89094c44da98b954eedeac495271d0f#code
Line 91: mapping (address => mapping (address => uint)) public allowance;

Shows that this contract doesn't follow the eth_contract_service's is_erc20 rule. Line 91 uses allowance mapping while is_erc20 standard requires it to be a function.

[medvedev1088]

AFAIK Solidity creates accessor methods for public fields automatically. There is a corresponding allowance(address, address) method as can be seen on Etherscan https://etherscan.io/address/0x6b175474e89094c44da98b954eedeac495271d0f#readContract.